This is a video of an LPM test of a Survival Laser II Special Edition diode and driver module that was shot for a customer. The module metered over 2,350mW peak output on the Laserbee II laser power meter using a 405-G-1 lens. This is near the upper range of power for these units. See more info at http://www.survivallaser.com.
The G-1 is a single-element lens, while the standard lenses are 3-element. That means there are fewer glass surfaces for the beam to pass through, with lower power loss. Using a G-1 lens will result in about a 15% increase in output power with a 445nm laser. However, the beam divergence of a laser using a G-1 lens is higher than when using a 3-element lens.
garoq 1 week ago
The highest I've ever measured so far from one of these diodes is a little over 2.4W with a 405-G-1 lens.
garoq 1 month ago